No EN mode as far as I can tell, and typing the English name doesn't always bring results. Searching by grade and year range helps narrow things down as I stumble through JP.
I'll probably still be going to the usual places like Dalong first, but more options is always good! I do wish they had non-Gundam kits on there as well, was trying to look up the manual for the HG Reginleif a while back and it took a while.